<template>
	<view>
		<view class="search-box">
			<uni-search-bar @confirm="search" @input="input" :radius="100" cancel-button="none"></uni-search-bar>
		</view>
		<view class="sugg-list">
			<view class="sugg-item" v-for="(item,i) in searchResults" :key="i" @click="gotoDetail(item)">
				<view class="goods-name">
					{{item.goods_name}}
				</view>
				<uni-icons type="arrowright" size="16"></uni-icons>
			</view>
		</view>
	</view>
	<view class="history-list">
		<view class="history-text">
			<text>搜索历史</text>
			<uni-icons type="trash" size="17" @click="clean"></uni-icons>
		</view>
		<view class="history-item">
			<uni-tag :text="item" v-for="(item,i) in histories" :key="i" @click="gotogoodsList(item)"></uni-tag>
		</view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				timer: null,
				kw:'',
				searchResults:[],
				historyList:[]
			}
		},
		onLoad() {
			this.historyList = JSON.parse(uni.getStorageSync('kw')||'[]')
		},
		methods: {
			input(e){
				clearTimeout(this.timer)
				this.timer = setTimeout(()=>{
					this.kw = e
					this.getSearchList()
				},500)
			},
			async getSearchList(){
				 if(this.kw.length === 0){
					 this.searchResults = []
					 return
				 }
				 const {data: res} = await uni.$http.get('/api/public/v1/goods/qsearch',{ query: this.kw})
			if(res.meta.status!==200) return uni.$showMsg()
			this.searchResults = res.message
			this.getHistroyList()
			},
			gotoDetail(item){
				uni.navigateTo({
					url:'/subpkg/goods_detail/goods_detail?goods_id=' + item.goods_id 
				})
			},
			getHistroyList(){
				// this.historyList.push(this.kw)
				const set = new Set(this.historyList)
				set.delete(this.kw)
				set.add(this.kw)
				this.historyList = Array.from(set)
				 // 持久化存储
				 uni.setStorageSync('kw',JSON.stringify(this.histories))
			},
			clean(){
				this.historyList = []
				uni.setStorageSync('kw','[]')
				
			},
			gotogoodsList(kw){
				uni.navigateTo({
					url:'/subpkg/goods_list/goods_list?query=' + kw
				})
			}
		},
		computed:{
			histories(){
				return [...this.historyList].reverse() 
			}
		}
		
	}
</script>

<style>
.search-box{
	position: sticky;
	top: 0;
	z-index: 999;
}
.sugg-list{	
padding: 0 5px;
}
.sugg-item{
	display: flex;
	align-items: center;
	justify-content: space-around;
	font-size: 12px;
	padding: 13px 0;
	border-bottom: 1px solid #efefef;
}
.goods-name{
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}
.history-list{
	padding: 0 5px;
}
.history-text{
	display: flex;
	height: 40;
	align-items: center;
	font-size: 13px;
	justify-content: space-between;
	border-bottom: 1px solid #efefef;
}
.history-item{
	display: flex;
	flex-wrap: wrap;
}
.uni-tag{
	margin-top: 5px;
	margin-right: 5px;
	}
</style>
